Graphene oxide (GO) supported zero valent iron nanoparticles(NZVI) ,NZVI16-GO1(F16G1) ,were successfully synthesized by using liquid phase reduction method,and exhibited excellent adsorption of ciprofloxacin(CIP) in water. The structure,chemical composition and micro-morphology of F16G1 were characterized by using X-ray diffraction(XRD) ,field emission scanning electron microscopy (FE-SEM) ,energy dispersive spectrometer (EDS) and thermogravimetric analysis(TG) . It was found that the agglomeration of NZVI was remarkably inhibited by the introduction of GO. The electrostatic attraction showed significant influence on the adsorption of CIP onto F16G1. The effects of pH,reaction time,initial concentration and dosage on the removal efficiency of NZVI were investigated. No obvious change of adsorption capacity was detected with the pH ranging from 4 to 5.The maximum adsorption capacity of F16G1 was determined to be 656.66 mg·g~(-1),which could be fitted to the Langmuir adsorption isotherm. Furthermore,the inherent magnetic property of NZVI contributed to the easy recovery of composite adsorbents.